<?php

namespace app\admin\controller;

use app\admin\model\Grade;
use app\admin\model\GradeClass;
use app\admin\model\School;
use app\admin\model\Schoolclass;
use app\common\controller\Backend;
use Exception;
use fast\Random;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Reader\Csv;
use PhpOffice\PhpSpreadsheet\Reader\Xls;
use PhpOffice\PhpSpreadsheet\Reader\Xlsx;
use think\Db;
use think\exception\PDOException;
use think\exception\ValidateException;

/**
 * 
 *
 * @icon fa fa-circle-o
 */
class Teachers extends Backend
{

    /**
     * Teachers模型对象
     * @var \app\admin\model\Teachers
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Teachers;
        $class_ =  (new School())->select();
        $class = array_column($class_,'name','id');
        $this->assignconfig('school_list',$class);
    }



    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if (false === $this->request->isAjax()) {
            return $this->view->fetch();
        }
        //如果发送的来源是 Selectpage，则转发到 Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
        $list = $this->model
            ->with("school")
            ->where("type",1)
            ->where($where)
            ->order($sort, $order)
            ->paginate($limit);

        $rows = $list->items();

        foreach ($rows as $row){
            //获取老师关联的所有班级
           $class =  (new Schoolclass())->with(["grade",'grade_class'])->where("teacher_id",$row->id)->select();
           $teacher_class = [];
           foreach ($class as $k=>$v){
               $teacher_class[] = $v->grade->gradeName."-".$v->grade_class->name;
           }
           $row->teacher_class = $teacher_class;
        }


        $result = ['total' => $list->total(), 'rows' => $list->items()];
        return json($result);
    }

    public function selectpage()
    {
       $schoold = $this->request->post("school_id");
        if ($schoold){
            $list = $this->model
                ->where('type',1)
                ->where("school_id",$schoold)
                ->field(["id","nickname"])
                ->select();
        }else{
            $list = $this->model
                ->where('type',1)
                ->field(["id","nickname"])
                ->select();
        }
        //这里一定要返回有list这个字段,total是可选的,如果total<=list的数量,则会隐藏分页按钮
        return json(['list' => $list, 'total' => count($list)]);
    }


    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);

        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            //账号和手机号唯一性校验
            $coountHas = $this->model->where("username",$params['username'])->count();
            if ($coountHas){
                $result = [
                    'code' => 0,
                    'msg'  => "账号已存在",
                    'data' => [],
                    'url'  => null,
                    'wait' => 3,
                ];
                echo json_encode($result);die;
//                $this->error("账号已存在");
            }
            $phoneHas = $this->model->where("mobile",$params['mobile'])->count();
            if ($phoneHas){
                $result = [
                    'code' => 0,
                    'msg'  => "手机号已存在",
                    'data' => [],
                    'url'  => null,
                    'wait' => 3,
                ];
                echo json_encode($result);die;
//                $this->error("手机号已存在");
            }

            $params ['type']  = 1;
            $params ['status']  = "normal";
            $params ['salt'] =  Random::alnum();
            $params ['password'] = $this->getEncryptPassword($params['password'] ,  $params ['salt']);
            $result = $this->model->allowField(true)->save($params);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success();
    }


    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds) && !in_array($row[$this->dataLimitField], $adminIds)) {
            $this->error(__('You have no permission'));
        }
        if (false === $this->request->isPost()) {
            $this->view->assign('row', $row);
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            //账号和手机号唯一性校验
            $phoneHas = $this->model->where("mobile",$params['mobile'])->where("id","<>",$ids)->count();
            if ($phoneHas){
                $result = [
                    'code' => 0,
                    'msg'  => "手机号已存在",
                    'data' => [],
                    'url'  => null,
                    'wait' => 3,
                ];
                echo json_encode($result);die;
//                $this->error("手机号已存在");
            }


            $salt  = Random::alnum();
            if ($params['password'] != ''){
                $params ['password'] = $this->getEncryptPassword($params['password'] ,$salt);
                $params ['salt'] = $salt;
                $params ['status'] = "normal";
            }else{
                unset($params['password']);
            }

            $result = $row->allowField(true)->save($params);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }


    public function import()
    {
        $file = $this->request->request('file');
        if (!$file) {
            $this->error(__('Parameter %s can not be empty', 'file'));
        }
        $filePath = ROOT_PATH . DS . 'public' . DS . $file;
        if (!is_file($filePath)) {
            $this->error(__('No results were found'));
        }
        //实例化reader
        $ext = pathinfo($filePath, PATHINFO_EXTENSION);

        if (!in_array($ext, ['csv', 'xls', 'xlsx'])) {
            $this->error(__('Unknown data format'));
        }
        if ($ext === 'csv') {
            $file = fopen($filePath, 'r');
            $filePath = tempnam(sys_get_temp_dir(), 'import_csv');
            $fp = fopen($filePath, 'w');
            $n = 0;
            while ($line = fgets($file)) {
                $line = rtrim($line, "\n\r\0");
                $encoding = mb_detect_encoding($line, ['utf-8', 'gbk', 'latin1', 'big5']);
                if ($encoding !== 'utf-8') {
                    $line = mb_convert_encoding($line, 'utf-8', $encoding);
                }
                if ($n == 0 || preg_match('/^".*"$/', $line)) {
                    fwrite($fp, $line . "\n");
                } else {
                    fwrite($fp, '"' . str_replace(['"', ','], ['""', '","'], $line) . "\"\n");
                }
                $n++;
            }
            fclose($file) || fclose($fp);

            $reader = new Csv();
        } elseif ($ext === 'xls') {
            $reader = new Xls();
        } else {
            $reader = new Xlsx();
        }

        //导入文件首行类型,默认是注释,如果需要使用字段名称请使用name
        $importHeadType = isset($this->importHeadType) ? $this->importHeadType : 'comment';

        $fieldArr = [
            "学校" => "school",
            "教师姓名"  => "nickname",
            "电话"  => "mobile",
            "性别"  => "gender",
        ];


        //加载文件
        $insert = [];
        try {
            if (!$PHPExcel = $reader->load($filePath)) {
                $this->error(__('Unknown data format'));
            }
            $currentSheet = $PHPExcel->getSheet(0);  //读取文件中的第一个工作表
            $allColumn = $currentSheet->getHighestDataColumn(); //取得最大的列号
            $allRow = $currentSheet->getHighestRow(); //取得一共有多少行
            $maxColumnNumber = Coordinate::columnIndexFromString($allColumn);
            $fields = [];
            for ($currentRow = 1; $currentRow <= 1; $currentRow++) {
                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
                    $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
                    $fields[] = $val;
                }
            }

            for ($currentRow = 2; $currentRow <= $allRow; $currentRow++) {
                $values = [];
                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
                    $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
                    $values[] = is_null($val) ? '' : $val;
                }
                $row = [];
                $temp = array_combine($fields, $values);
                foreach ($temp as $k => $v) {
                    if (isset($fieldArr[$k]) && $k !== '') {
                        $row[$fieldArr[$k]] = $v;
                    }
                }
                if ($row) {
                    $insert[] = $row;
                }
            }
        } catch (Exception $exception) {
            $this->error($exception->getMessage());
        }
        if (!$insert) {
            $this->error(__('No rows were updated'));
        }

        try {
            $not_exsit_school = [];
            $fail_insert = [];
            $success = $fail = $skip =0;
            foreach ($insert as $k => $v){
                $this->model = new \app\admin\model\Teachers();
                $schoolModel = new School();

                if (!isset($v['school']) || !isset($v['nickname']) || !isset($v['mobile']) || !isset($v['gender'])){
                    $this->error("导入模板不符合要求");
                }

                $school = $v['school'];
                $nickname = $v['nickname'];
                $mobile = $v['mobile'];
                $sex= $v['gender']=="男" ? 1 : 0;
                //查询学校是否存在 不存在进行创建
                $schoolData  = $schoolModel->where("name",$school)->find();
                if (!$schoolData){
                    $not_exsit_school[] = $school;
                    continue;
                }else{
                    $school_id = $schoolData->id;
                }

                //判断手机号不能重复
                $system_noHas = $this->model->where("username",$mobile)->count();
                if ($system_noHas){
                    $fail_insert [] = $mobile;
                    $skip++;
                    continue;
                }
                $salt  = Random::alnum();
                $re = $this->model->save([
                    "status"    => "normal",
                    "type"    => 1,
                    "salt"    => $salt,
                    "password" =>  $this->getEncryptPassword('As123456',$salt),
                    "username" => $mobile,
                    "nickname" => $nickname,
                    "mobile" => $mobile,
                    "gender" => $sex,
                    "school_id" => $school_id,
                    "createtime" => time(),
                    "updatetime" => time(),
                ]);
                $re ? $success++ : $fail ++;
            }

        } catch (PDOException $exception) {
            $msg = $exception->getMessage();
            if (preg_match("/.+Integrity constraint violation: 1062 Duplicate entry '(.+)' for key '(.+)'/is", $msg, $matches)) {
                $msg = "导入失败，包含【{$matches[1]}】的记录已存在";
            };
            $this->error($msg);
        } catch (Exception $e) {
            $this->error($e->getMessage());
        }
        $msg = "操作成功，{$success}条导入成功，{$fail}条导入失败，{$skip}条数据已存在".PHP_EOL;
        if (count($not_exsit_school)){
            $msg .= "学校名称：".implode(",",$not_exsit_school)."不存在，无法入库";
        }
        if (count($fail_insert)){
            $msg .= "手机号：".implode(",",$fail_insert)."已存在，无法入库";
        }
        $this->success($msg);
    }


    public function getEncryptPassword($password, $salt = '')
    {
        return md5(md5($password) . $salt);
    }
}
